Home / 3,072.13-4,239.44-1,813.39

Finding the Fourth Proportional to 3,072.13, 4,239.44 and 1,813.39

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Solution

The fourth proportional to 3,072.13, 4,239.44 and 1,813.39 is: 2,502.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,072.13 : 4,239.44 = 1,813.39 : x
  2. Step 2: Convert to fraction form
    3,072.13/4,239.44 = 1,813.39/x
  3. Step 3: Cross multiply
    3,072.13x = 4,239.44 × 1,813.39
  4. Step 4: Simplify right side
    3,072.13x = 7,687,745.24
  5. Step 5: Solve for x
    x = 7,687,745.24/3,072.13
  6. Step 6: Final answer
    x = 2,502.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.